Introduction
A TDS tester is an instrument used to measure the total dissolved solids (TDS) in water, which is the concentration of dissolved inorganic and organic substances, such as salts, minerals, and other compounds, and it is used for testing water quality in drinking water, aquariums, hydroponics, pools, environmental monitoring, and many other applications. The TDS tester measures the electrical conductivity of the water, which is related to the concentration of dissolved ions, and it converts the conductivity to a TDS value using a conversion factor, displaying the result in parts per million or milligrams per liter; the tester is typically a portable handheld instrument, with a conductivity cell or electrode, and it is simple to use, with the electrode dipped into the sample and the reading displayed on the digital display, and it may include automatic temperature compensation, since the conductivity depends on the temperature, and some models also display the conductivity in microsiemens per centimeter. TDS testers are used by water treatment operators for monitoring the TDS of drinking water, by aquarium keepers for testing the TDS of aquarium water, by hydroponic growers for monitoring the nutrient solution, by pool operators for monitoring pool water, by environmental users for testing water quality, by industry for monitoring process water and boiler water, and for education, and they are used for routine monitoring, for quick checks, for quality control, and for deciding when to replace filters in water purification systems, with features such as digital displays, various ranges, and low cost. With their convenience, TDS testers are practical instruments for measuring the dissolved solids content of water.
Pentype TDS Tester LPTS-T2010
Pentype Tester features a range up to 9999 ppm for accurate water quality analysis. It operates within a temperature range up to 80°C (32 to 176°F), suitable for diverse environments. ...
Multi-range Pocket TDS Tester LPTS-T2020
Multi-range pocket tester comes with 1 - 3 points calibration system. Equipped with platinum sensor provides fast and reliable results. The battery indicator shows the remaining battery ...
Pocket TDS Tester LPTS-T2011
Pocket tester is equipped with advanced platinum sensor & 1 point push button calibration system. It comes with midium range for measurement. It is easy to use & with waterproof features...
Pocket TDS Tester LPTS-T2012
Pocket tester is equipped with advanced platinum sensor & 1 point push button calibration system. It comes with high measurement range. It is easy to use & with waterproof features desig...
Pocket TDS Tester LPTS-T2010
Pocket tester is equipped with advanced platinum sensor & 1 point push button calibration system. It comes with low measurement range. It is easy to use & with waterproof features design...
Standards
USP General Chapter <645>-Water Conductivity
IEC 60746-3:2002-Expression of performance of electrochemical analyzers-Part 3: Electrolytic conductivity
Complies with the above standards, but is not limited to them.
Features
1. TDS tester for measuring total dissolved solids in water.
2. Conductivity-based measurement converted to TDS for quick water quality assessment.
3. Suitable for water treatment, environmental, aquaculture, food and hydroponics.
4. Includes tester, calibration, protective cap, battery and operation manual.
5. Supports TDS measurement for water quality, purification and process monitoring.
FAQ
Q1: What testing scenarios is this tester mainly applied to?
A: The TDS (total dissolved solids) tester is used in water treatment, environmental monitoring, aquaculture, food and beverage, hydroponics, agriculture and field testing to measure the total dissolved solids concentration in water for water quality assessment, purification system monitoring and process control. It supports drinking water quality checks, reverse osmosis (RO) and water purification system performance monitoring, aquaculture water quality, hydroponics nutrient solution management, environmental water testing, food and beverage process water, industrial water treatment, and swimming pool and spa maintenance. TDS provides a quick indication of water mineral content and purification system performance, widely used for routine water quality screening.
Q2: What standards does the tester comply with?
A: The TDS tester follows relevant ISO, ASTM and GB/T standards for conductivity and TDS measurement, including ISO 7888 and ASTM D4519. The hardware complies with IEC 61010 safety standards. Calibration should use certified conductivity/TDS standards traceable to international standards. Drinking water TDS limits follow applicable regulations (WHO, EPA, GB 5749: 1000 mg/L).
Q3: What is the warranty period for the whole machine and key components?
A: The whole TDS tester is covered by a 12-month warranty. The sensor, electronics and display are covered, while batteries and calibration solutions are consumables. Damage from improper use, dropping or unauthorized repair is excluded.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is very simple: power on, immerse sensor, and read result. No professional training is required. We provide an operation manual and remote guidance. Proper calibration and sensor cleaning are important for accurate readings.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified TDS/conductivity standards recommended every 1-3 months. Routine verification periodically. Sensor cleaning regularly. Battery replacement when needed. Full tester calibration annually.
Q7: Are supporting consumables universal?
A: Calibration solutions and batteries are available from general suppliers. Long-term consumable cost is very low for a TDS tester.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes measurement range, TDS conversion factor (NaCl, KCl, 442), temperature compensation, display units (mg/L, ppm), waterproof rating and accessories. Additional calibration solutions can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: No installation is required. The package includes the TDS tester and instruction manual. On-site service is not included for this type of portable instrument.
Q10: What types of samples are compatible with this equipment?
A: The TDS tester measures total dissolved solids in water and aqueous solutions within the TDS range and specification. TDS is derived from conductivity measurement using a conversion factor, so results depend on the dissolved solids composition. Highly viscous, oily or particulate-laden samples may require filtration. Users should select the appropriate TDS conversion factor for the sample type (NaCl for general water, 442 for natural water), calibrate regularly, ensure proper temperature compensation, rinse the sensor after each use, report results in mg/L or ppm with temperature specified, and understand that TDS does not identify specific ions (for detailed analysis, use ion chromatography or ICP). The tester should be stored with the protective cap on. The sensor should be cleaned periodically to remove mineral deposits. For RO system monitoring, TDS is commonly used to verify membrane performance (rejection rate). The tester should not be used in samples exceeding the temperature range. For accurate measurements, the sample should be at a stable temperature and the sensor fully immersed. The conversion factor should be matched to the expected water composition for best accuracy.
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